The interrogatives τίς, ποῖος may take the article when a question is asked about an object before mentioned: ΣΩ. νῦν δὴ ἐκεῖνα, ὦ Φαῖδρε, δυνάμεθα κρί_νειν. ΦΑΙ. τὰ ποῖα; SOCR. Now at last we can decide those questions. PH. The what questions?P.Phae. 277a.